So, I'm starting to wonder if I have endometriosis. I went off of birth control, had my period in August. My periods have always been bad when off birth control (painful, vomiting, upset stomach) My period was originally supposed to be sept 25th. I still haven't started. I've tested and keep getting negative tests. I'm feeling defeated and anxious. My period is horrendous and I just want to get it over with if I'm not pregnant. Only symptom is I'm having back pain. Any suggestions? I'm going to try to wait a few days to test again. I have been stressed at work so I know it could be that too. How do you gals get through this without going crazy? Every time someone announces they are pregnant I cry!